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Task
01.
Calculating Risk (P 4.1, 4.2)
Risk Assessment is the
process of evaluating a hazard to determine the level of action required to
reduce a risk to an acceptable level. There are several methods have been
developed for risk assessment. “Risk
assessment methods are used to decide on priorities and to set objectives for
eliminating hazards and reducing risks.” Here the follow methods are most
popular methods to assessing risk.
a)
LikelihoodConsequence
matrix
b)
Risk
Score Culculator1
c)
Risk
Score Calculator2
Given
assignment 03 tasks required us to do the risk assessing by method of Risk
Score Calculator2. So we necessary to know what are the principle of Risk
Score Calculator2. This calculator is from Quantitative RA method (i.e. There
are three types of methods have been developed for RA Qualitative
methods, Quantitative methods and SemiQuantitative methods).
Here the risk of a given hazard can be an equation of;
Risk= Exposure × Probability × Consequences.
Above the equation should
be solving step by step. First we want score the Exposure by given equation.
The equation says us,
Exposure
= Number of employees exposed × Rating
Then the probability is
scored by following equation.
Probability
= Number of employees exposed × Rating
Finally
Consequence scored by the following equation.
Consequence
= Number of employees exposed × Rating
Risk score calculator
Ø
Step
1
Scoring the Exposure
In exposure
table…..
Rarely rating
= 2
Number of
employees exposed = 60
Exposure=Number of employees exposed x
rating

so
Exposure=Number
of employees exposed x rating
=2x60=120
So
exposure = 120
Ø
Step
2
Scoring the Probability
In
probability table….
unusual sequence or
coincidence rating =5
Number of employees exposed = 60
Probability = Number of employees exposed x rating

So
Probability = Number of employees exposed x rating
= 5x60=300
So
probability = 300
Ø
Step
3
Scoring the Consequence(s)
In
consequence table…..
Several
Fatalities rating = 600
Number of
employees exposed = 60
Consequence(s) = Number of employees
exposed x rating

Consequence(s)=
Number of employees exposed x rating
= 600x60 = 36000
So
consequence(s) = 36000
Risk Score for Falling from Heights
R = (ExPxC)
R = 120x300x36000
R=1296000000
Task 02
Risk Score
for falling from heights is 1296000000.it is so high. It is above K1
(K1=100,000,000).
1296000000
> 100,000,000…
Because the
Risk is high.
Possible outcome(s)
Severity/fatality,
cause of hazard, likelihood of hazard & the safety setup are the key
factors determine the outcome & its impact of that accident. Thereby those
criteria are assessed in detail.
Severity/fatality assessment.
In Severity assessment..two
key factors that increase or decrease the fatality of the accident are
assessed.
 How fatal/ severe is the
accident?
 What is the cost of accident? Labor
cost, Material cost, Time cost?
Consequences of the accident are the outcome of a risk.
So Consequences is an incident can be the measure of the expected severity of
that incident. Thereby the Consequences of
the possible accident are assessed. When assessing the Consequences of
an accident ,the most severe category one could reasonably expect to result
from that accident should be selected .the Consequences of an event can be
categorized as follows.,
Fatal / Catastrophic
Death or
permanently disabling injury or illness that would prevent return to normal work.
this category may also include serious injuries if faced by many people.
Serious
Severe
deliberating injury or illness. Such an injury might prevent return to work
temporary. Injuries or health issues require hospitalization & long medical
treatments comes under this category.
Moderate
Significant injury or illness requiring more than first aid.
Although lost time may result, the injured party would be able to return to
work at the same job within a short period of time.
Minor
No injury/property
or equipment damage or slight injury requiring no more than first aid. This
would mean little or no time delay.
Task 03.
Risk Control Measures (P
4.3)
Before
analyzing Risk Control Measures we necessary to know “What is risk
control?”
Risk Control
The process of implementing measures to reduce
as far as reasonably practicable the risk associated with a hazard. The control
process must follow the control hierarchy, in order, as prescribed in some
health and safety legislation. It is important that control measures do not
introduce new hazards, and that the ongoing effectiveness of the controls is
monitored.
Any substantial measure that can practically execute and continue that
will avoid or at least minimize the severity of a possible threat to safety and
health is recognized as a
risk control measure.
+
For
an example:
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